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Core Information Standard: Release Notes

Core Information Standard V2.01 (page 1 of 1) in Core Information Standard V2.01 (chapter 2 of 3) within Core Information Standard: Release Notes

  • Publication Date: April 2026
  • Previous Release: v2.0 (August 2021)

Safety Relevant Changes – Data Items Relating to Sex and Gender

The following changes have been made to the clinical safety case report and hazard log:

  • Hazard Log Update: Updated to version 2.2.
  • Safety Case Update: Updated to version 1.8.
  • New Hazard Created: Hazard 37 “Mis-interpretation of sex”.
  • Replaced Hazard 16: Replaced “Sex data item may cause accidental disclosure of gender reassignment without consent” with a new hazard: > “Recording an individual's 'Gender identity' alongside their 'Sex at birth (observed)' in their clinical record and displaying together along with 'Administrative gender' (derived from the Personal Demographics Service) may cause accidental disclosure of transgender, non-binary or gender diverse status causing psychological harm”.

Model and Implementation Guidance

The following changes have been made to the model and implementation guidance:

  • Model Uplift: Uplifted from version 2.0 to 2.01 to align to the minor release version, including updated sex and gender data items.
  • Guidance Integration: Section-specific implementation guidance is now included directly in the model.
  • Model Changes: Documented in the summary table below.

Summary - Information model changes in this release

| Location | Data item | Update | Detail | | :--- | :--- | :--- | :--- | | Person demographics |

  • Gender
  • Sex
| Removal of data item(s) | Data items removed following consultation. | | Person demographics |
  • Sex at birth (observed)
  • Administrative gender
  • Gender identity
  • Additional information about gender identity
  • Pronouns
| Addition of data item(s) |
  • Sex at birth (observed) is a mandatory data item.
  • Administrative gender is a required, read-only legacy data item for England only to represent the data held on the Personal Demographics Service (PDS).
  • All other new data items are required in the core information standard.

Page last updated: 08 July 2026